How do I promote my site?

Good start, @Srirangan — the thread already hits a few basics and useful points from @Dani, @aeromit, @ResaleBroker and others. Below are practical, complementary steps focused on a technical Q&A site that go beyond simple listing/paid channels and aim for sustained, organic growth.

Treat each question as a product. Make every Q&A page a standalone landing page: put a short, exact solution first, then a clear step-by-step explanation and any minimal examples. Use precise question text in the title and URL, tidy tag pages so related threads cluster, and prevent duplicate-content by canonicalizing near-duplicate answers. Mine your own site search logs and unanswered-thread lists to find the long-tail developer problems people actually type — those are the highest-value targets.

Grow the answerer community, not just visitors. Add small incentives that improve speed and quality: reputation points, visible leaderboards, periodic bounties or curated “expert picks.” Publish a weekly digest that turns the best answers into shareable posts. Run occasional micro-events (coding challenges, AMA with an expert) and partner with a few niche blogs or newsletters for guest Q&A roundups — offer them exclusive, ready-to-publish content so outreach is a true win-win. When seeding external forums or social sites, always post full, helpful answers and only link back where it genuinely adds value.

Measure what matters and iterate. Track organic landing pages, sign-up/activation rate, repeat visits, time-to-first-answer, and answer-accept rate. Quick 30-day starter: pick 20 high-intent questions and optimize them; publish one deep tutorial and a newsletter; do 10 targeted, personalized outreach messages to bloggers/podcasts; measure and repeat. Above all, focus on being useful — as @kub365 said, truly helpful content is the engine that makes everything else work.